Custom manufacturing example · Rubber gasket for mechanical black sealing gasket

CUSTOM RUBBER & SILICONE MANUFACTURING

Rubber gasket for mechanical black sealing gasket

A custom component for your assembly.

Define the mating surfaces, dimensions and working conditions. ETOL manufactures the part to the agreed design and material.

Factory direct
Made to order
Drawing & sample support

Share the part, its application and your estimated quantity.

Customize the fit, material and finish

Vulcanization workshop illustration with green molding presses and blue collection bins

Material & hardness

Selected for the contact, temperature and movement

Color & finish

Define the visible surfaces and intended color

Shape & dimensions

Develop holes, lips and walls around the mating parts

Mounting & fit

Match the attachment and installation method

Product Overview

A black sealing gasket provides a rubber interface between matching mechanical faces. The contact outline, thickness and locating features should follow the joint so compression occurs where intended. Its color does not establish the compound or suitability for a particular fluid.

Inspect the mating surfaces and identify any groove, bolt opening or raised feature that controls the gasket's position. A part can align with the outside of the joint while leaving an internal passage partly obstructed. The compressed condition needs to be considered alongside the loose thickness.

ETOL can customize the shape, material and hardness. Select the compound for the contact medium and operating conditions, and use the joint's specified assembly method. Uneven tightening or an unsupported edge can produce a different contact pattern from the one intended by the gasket design.

After a representative trial, inspect the gasket for folding, displacement or uneven compression. Keep debris and old material off the faces before refitting a serviceable part or installing a replacement. Do not add extra layers to compensate for an unexplained leak; review the mating surfaces and defined compression first. The approved gasket specification should retain both the material and the complete contact geometry.

Material options: Rubber. Custom formulation and color for the intended contact conditions.
Hardness selection: Rubber: 30–90 Shore A. Do not add extra layers to compensate for an unexplained leak; review the mating surfaces and defined compression first.
Custom dimensions: Shape the gasket around the mechanical sealing face, allowing for locating grooves, bolt openings and any raised mating features.
Fit & assembly: Inspect the mating surfaces and identify any groove, bolt opening or raised feature that controls the gasket's position.
Use & inspection: Keep debris and old material off the faces before refitting a serviceable part or installing a replacement.

Photos illustrate structure or material only. The contact outline, thickness and locating features should follow the joint so compression occurs where intended. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.

Choosing a material or hardness? Explore the selection guide →

From part requirements to production

Define the part

Identify key dimensions, mating surfaces and quantity

Review material & tooling

Agree the compound and manufacturing approach

Evaluate the sample

Review the fit and agreed requirements in the assembly

Produce & inspect

Manufacture and check against the approved requirements

Review the intended assembly

Working conditions

Identify temperature, contact fluids and repeated movement.

Material and structure

Consider hardness together with wall thickness and support.

Installation

Check access, mating dimensions and the fitting sequence.

Ordering this custom component

Can the shape be adjusted to my mating parts?

Yes. Show the receiving opening, contact surfaces and clearance limits. We can review the dimensions and retaining features around the intended fit.

Which details should be agreed before tooling?

Agree the critical dimensions, material, hardness, visible surfaces and sample requirements. Explain how the part is installed and which interfaces control its function.

Can a sample help define the replacement?

A sample can help explain the structure. Compare it with the assembly because wear, swelling or compression may have changed its original dimensions.

How is the quotation for this part determined?

The material, part geometry, tooling, quantity and finishing affect the quotation. Include the intended batch size and delivery destination when describing your requirements.

DISCUSS THIS COMPONENT

Describe the part you need.

Share the fit, operating conditions and quantity with our manufacturing team.